What is the effect of using an air purifier to remove formaldehyde?
Many families choose to use an air purifier to remove indoor formaldehyde after renovation, but can the air purifier really remove formaldehyde? What about the effect?
First of all, we can be sure that some air purifiers do have the effect of removing formaldehyde, but we must also be clear that the effect of using air purifiers in addition to formaldehyde is not as good as the promotion of the business.
Air purifiers refer to home appliances that can adsorb, decompose or convert various air pollutants and improve air cleanliness.
There are two main methods for removing formaldehyde from air purifiers on the market. One is to filter formaldehyde to remove formaldehyde. The principle is the same as that of activated carbon except for formaldehyde, and this filter needs to be replaced frequently. The other is a negative ion air purifier. The negative ion bioactivity generated by it neutralizes harmful substances in the air.
Song Guangsheng, director of the China National Indoor Interior-Environment and Environmental Product Quality Supervision and Inspection Center, said in an interview with the media that most of the air purifiers on the market claimed nearly zero formaldehyde removal. First of all, the presence of formaldehyde is not a one-time, but slowly accumulated through the long-term decoration process, formaldehyde from a variety of carriers is more and more continuous, it is difficult to quickly and effectively remove, which requires a long-term process To volatilize. In addition, the CADR value of the purified air pollutants will be at least 60m3/h, which will be effective. Due to the continuous release of household formaldehyde, the actual effect may not reach 29m3/h.
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